Maintenance & Technical > KX500 Original
confused jetting
bige:
when i leaned it out it puled a little harder but that low throttle studdering stinks im afraid to lean pilot below a55. by the way whats up with the surging when off the throttle? at mid rpms. this is my first kx 500 and love it but these issues are getting anoying
Foxx4Beaver:
HAHA....try screwing your idle all the way in,that should stop the majority of the surging.
I do agree with Motorrad...go back to your original jetting,and try the 40:1...I run that as well with excellent results,and if all else fails,try a hotter plug and see if that changes anything.
Motorrad:
shouldnt surge at mid RPM... pick the needle back up to #3
where are you located anyways>?
bige:
thanks for the replies, ive always ran the br8es plugs yz 250, rm 250 i guess ill try those plugs at a 7 range and see. but was wondering would a mix ratio of 50:1 be a bad thing and run to rich?
Motorrad:
--- Quote from: bige on November 30, 2011, 12:10:48 PM ---thanks for the replies, ive always ran the br8es plugs yz 250, rm 250 i guess ill try those plugs at a 7 range and see. but was wondering would a mix ratio of 50:1 be a bad thing and run to rich?
--- End quote ---
Id try the good plug and 40:1 before you go messing with heat ranges... changing a heat range at this point will throw you off... if your bone stock, you should end up at a #8 heat range plug... K5 like em there.
also go back to the 165 55 when you do so... Mid range surge is BAD JU JU... I have seen way more bikes STICK due to a lean mid range than anything else... Roll off the main to the Mid and STICK...
at minimum pick the needle back up to #3 to cure mid range
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